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Table 1 Participants’ baseline characteristics

From: Bacterial composition and colony structure of the lower respiratory tract in infants and children with recurrent wheezing: a case–control study

Characteristics A1 (n = 13) A2 (n = 16) B (n = 19) P
Age (months)a 12.18 ± 4.35 11.92 ± 5.60 15.57 ± 3.502 0.084
Weight (kilogram)a 9.25 ± 1.34 9.94 ± 1.01 10.46 ± 1.37 0.066
Gender (male)b 10 (76.9%) 10 (62.5%) 12 (63.2%) 0.655
Duration of disease (months)a 0.27 ± 0.19 3.46 ± 2.88 0.06 ± 0.04  < 0.05
Blood eosinophils (%)a 2.11 ± 2.11 2.32 ± 1.70 2.28 ± 1.26 0.992
White blood cell count (× 106/g) a 9.29 ± 3.61 11.24 ± 4.10 9.24 ± 2.28 0.245
Fe–NO (ppb)c 10.64 ± 3.78 9.69 ± 3.61 - 0.539
Tidal volume (mL/kg)c 8.58 ± 1.45 7.86 ± 1.56 - 0.264
VPEF/VE (%)c 20.23 ± 2.58 22.77 ± 5.61 - 0.181
TPEF/TE (%)c 17.16 ± 3.96 20.57 ± 7.14 - 0.174
Respiratory rate (times/min)c 32.09 ± 8.17 30.77 ± 7.04 - 0.674
  1. aThe values shown for continuous variables are means ± standard deviations. One-way analysis of variance
  2. bThe categorical variables show the number of samples, and the percentage is shown in parentheses
  3. cThe values shown for continuous variables are means ± standard deviations. Independent sample t-tests